A. Bibby、Louis Mercier2002-12-05Green Chemistry
The adsorption properties of various water-soluble aromatic molecules (p-nitrophenol, p-nitroaniline, m-nitrophenol, p-chlorophenol and phenol), with CD-HMS, a new class of cyclodextrin-containing materials with uniform framework mesoporosity, has been investigated. The adsorption isotherms, uptake kinetics and distri…
Mesoporous Materials and CatalysisAnalytical Chemistry and ChromatographyZeolite Catalysis and Synthesis
D. M. Sullivan、Merlin L. Bruening2002-12-05Chemistry of Materials
Alternating electrostatic deposition of poly(amic acid) salts and poly (allylamine hydrochloride) (PAH) followed by heat-induced imidization yields ultrathin, gas-selective polyimide membranes on porous alumina supports. These membranes are appealing because of the stability and selectivity of polyimides and the fact…
Surface Modification and SuperhydrophobicityPolymer Surface Interaction StudiesSynthesis and properties of polymers
Martijn W. A. Kuijpers、Dirk van Eck、Maartje F. Kemmere 等 4 位作者2002-12-05Science
The feasibility of ultrasound-induced in situ radical formation in liquid carbon dioxide was demonstrated. The required threshold pressure for cavitation could be exceeded at a relatively low acoustic intensity, as the high vapor pressure of CO2 counteracts the hydrostatic pressure. With the use of a dynamic bubble mo…
Photoacoustic and Ultrasonic ImagingUltrasound and Cavitation PhenomenaUltrasound and Hyperthermia Applications
Jason H. Rouse、Peter T. Lillehei2002-12-05Nano Letters
Polymer/carbon nanotube films have been formed by the alternate adsorption of the polyelectrolyte poly(diallyldimethylammonium chloride) and single walled carbon nanotubes (SWNT) onto substrates. Atomic force and scanning electron microscopies indicated that the adsorbed SWNTs were mostly in the form of 5−10 nm bundle…
Carbon Nanotubes in CompositesGraphene research and applicationsMolecular Junctions and Nanostructures
Zenaida Peralta-Inga、Pat Lane、Jane S. Murray 等 7 位作者2002-12-05Nano Letters
To help understand and predict nanotube interactions, the electrostatic potentials on both the outer and the inner surfaces of 10 single-walled model systems have been computed at the Hartree−Fock STO-5G//STO-3G level. All structures were optimized computationally. Both carbon and boron/nitrogen tubes were studied, in…
Advancements in Battery MaterialsGraphene research and applicationsBoron and Carbon Nanomaterials Research
Jiacheng Liu、Guo、Jin‐Shun Huang 等 4 位作者2002-12-05Inorganic Chemistry
Copper thiocyanate compounds with three different oxidation states, Cu(I)(admtrz)SCN (1), [Cu(I)(2)Cu(II)(admtrz)(6)(SCN)(2)](ClO(4))(2) (2), and [Cu(II)(3)(admtrz)(4)(SCN)(3)(mu(3)-OH)(H(2)O)](ClO(4))(2).H(2)O (3), have been synthesized and characterized (admtrz = 4-amino-3,5-dimethyl-1,2,4-triazole). Compounds 1 and…
Metal complexes synthesis and propertiesMagnetism in coordination complexesLanthanide and Transition Metal Complexes
Z. D. Chen、S. Q. Shen2002-12-05arXiv
Magnetic relaxation in molecular magnets under a sweeping field is studied by taking into account local stray fields. It is found that the randomness of local stray field leads to a distribution of the relaxation rate which subsequently makes the relaxation deviate from the exponential law as predicted by the Landau-Z…
Mesoscale and Nanoscale PhysicsMaterials Science
W. K. Hiebert、L. Lagae、J. De Boeck2002-12-05arXiv
Spatially resolved measurements of quasi-ballistic precessional magnetic switching in a microstructure are presented. Crossing current wires allow detailed study of the precessional switching induced by coincident longitudinal and transverse magnetic field pulses. Though the response is initially spatially uniform, de…
Materials ScienceMesoscale and Nanoscale Physics
Biplab Ganguli、Kamal Krishna Saha、Tanusri Saha-Dasgupta 等 5 位作者2002-12-05arXiv
Band structure and optical properties of defect- Chalcopyrite type semiconductor ZnIn$_2$Te$_4$ have been studied by TB-LMTO first principle technique. The optical absorption calculation suggest that ZnIn$_2$Te$_4$ is a direct-gap semiconductor having a band gap of 1.40 eV., which confirms the experimentally measured…
Materials Science
Junqing Hu、Quan Li、Xiangmin Meng 等 5 位作者2002-12-05OpenAlex
Coaxial Zn/ZnO nanocables and ZnO nanotubes have been fabricated via a thermal reduction route using ZnS powder as the source material. The samples were characterized using X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray spectrometry. The as-synthes…
Carbon Nanotubes in CompositesZnO doping and propertiesAdvanced Sensor and Energy Harvesting Materials
F. Christin2002-12-05OpenAlex
Abstract The French company Snecma Moteurs is a leading producer of high‐performance composites for operation under high mechanical stress and at high temperature, such as in jet engines, aircraft brake disks, or even rocket propulsion systems. The author presents the different families and generations of carbon‐carbo…
Material Selection and PropertiesAluminum Alloys Composites PropertiesAdvanced ceramic materials synthesis
Finardi Filho,Flávio2002-12-05OpenAlex
General aspects enzymes as proteins enzymes in foods (endogenous and exogenous) immobilized enzymes and their applications enzymes in food analysis mechanisms of action groups of enzymes and specific enzymes utilization in foods reaction(s)catalyzed classification according to enzyme committee nomenclature properties…
Enzyme Production and CharacterizationDigestive system and related healthEnzyme Structure and Function
Daisuke Matsuura2002-12-05OpenAlex
Trivalent-rare-earth ion-doped Y2O3 nanocrystals have been synthesized, and their photoluminescence properties have been studied under 980 nm laser diode excitation. The crystallite size estimated by x-ray diffractometry and scanning electron microscopy was about 30–40 nm. In Yb3+ and Tm3+ codoped Y2O3 nanocrystals, t…
Luminescence and Fluorescent MaterialsLuminescence Properties of Advanced MaterialsQuantum Dots Synthesis And Properties
Takashi Kurihara、Michio Horiuchi、Yuichi Takeuchi 等 4 位作者2002-12-04OpenAlex
The advantages of mullite ceramic for thin-film application are examined. Using homogeneous powder, a dense mullite substrate consisting of fine mullite grains was provided without the addition of a sintering aid. The properties obtained are superior to those of the mullite presented by M. Horiuchi et al. (1988) and a…
3D IC and TSV technologiesMicrowave Dielectric Ceramics SynthesisAdvanced ceramic materials synthesis
D.C.H. Yu、D.P. Favreau、E. Martin 等 4 位作者2002-12-04OpenAlex
A simple one-step plasma-enhanced chemical vapor deposition of TEOS (PETEOS) deposition process for submicron multilevel metallization has been developed. The effect of deposition conditions on PETEOS step coverage and deposition profile is investigated. Two new processes are demonstrated which meet the step coverage…
Metal and Thin Film MechanicsCopper Interconnects and ReliabilitySemiconductor materials and devices
Kazutomo Hoshino、Hideshi Yagi、H. Tsuchikawa2002-12-04OpenAlex
The effect on electromigration open-circuit failure of the addition of a small amount of titanium into copper interconnects is investigated. Mean time to failure (MTF) increased with increasing Ti concentration up to somewhere around 0.4 wt.% and decreased sharply by further addition of Ti, while the resistivity of Cu…
Electronic Packaging and Soldering TechnologiesCopper Interconnects and ReliabilitySemiconductor materials and devices
J.M. Braun、S. Rizzetto、Noboru Fujimoto 等 5 位作者2002-12-04OpenAlex
Investigations of the breakdown behavior of epoxy insulation systems with controlled defects based on floating metallic inclusions and protrusions fixed to cast-in electrodes were carried out. Spacers made with filled resins and blunt embedded metallic needles failed at lower stress than spacers with sharp needles. Ho…
Non-Destructive Testing TechniquesPower Transformer Diagnostics and InsulationHigh voltage insulation and dielectric phenomena
R. Geary、I.J. Kemp、Alan Wilson 等 4 位作者2002-12-04IEEE International Symposium on Electrical Insulation
It is pointed out that an improved calibration strategy for partial-discharge (PD) detectors in rotating machine applications can only be achieved if the propagation characteristics of PD pulses are clearly understood, thus enabling the calibration pulse to simulate the discharge pulse more accurately as it appears at…
Electrostatic Discharge in ElectronicsHigh voltage insulation and dielectric phenomenaPlasma Diagnostics and Applications
H. Borsi2002-12-04OpenAlex
The electric and dielectric behavior of ester fluid considered as a substitute for PCB is examined. After a short description of the insulating fluid, the authors consider the influence of temperature differences and aging condition of the insulation on the breakdown behavior of the fluid-paper combined dielectric. Fu…
Material Properties and ProcessingHigh voltage insulation and dielectric phenomenaAdvanced Cellulose Research Studies
N.M. Burns2002-12-04IEEE International Symposium on Electrical Insulation
Supersmooth (SS), extra-clean semiconductor shields have been demonstrated to be markedly improved in extruded surface smoothness and to contain a minimal level of ionic impurities. In well-accepted accelerated cable aging tests for wet locations, where the SS extra-clean semiconductives are used as conductor shields,…
Electrical Fault Detection and ProtectionHigh voltage insulation and dielectric phenomenaLightning and Electromagnetic Phenomena